Low Temperature Stirling Engine

roughly 3-5 minutes, they run until the other cylinder warms up pretty much, well th ones ive seen so far because they get motivation from one warm cylinder making pressure and one cold cylinger making like a vacuum i believe

Sterling engines seem very practical, I wonder how long they last.

there is a turbine thatworks in the desert. it takes the surface air in a giant cone-tent open in the top (dont remember if 3oo meters or 3 km) whit a turbine on that hole. it works whit the flow due to temp diferences...

It would cool down on the way. Nope

? huh ?

i was just thinking, (JUST imagining) if we route the air from sahara or nearest desert to the cold places of the earth using a VERY EXPENSIVE tunnel or tube, could it be possible?!?!?

where can i get one?

no, both cool AND hot! :))

Hot!

Cracked me up! Thanks for the lol. Have a GREAT day!

That's true, but please remember, a Stirling Engine is for life, not just for Christmas ;-)

Great posts. They're like puppies--you see one--you want one.

They're not that efficient. The point is that they can harness a small temperature gradient and turn it into useful mechanical energy.
You'll need a much bigger one to make it worthwhile. They maybe part of the future of solar power.

"Off to read about how Stirling Engines work... especially on how well they'd work in cold places..."

The best imaginable heat engine is the carnot engine(you cannot actually construct one in real life, but the stirling engine can get pretty close). The expression for it's efficiency is n = 1 - T1/T2, where T1 is the cold reservoir and T2 the hot reservoir(temperature is in kelvin).

For a cup of tea vs. room temperature you cannot hope to get more than about 15% efficiency.

this is awesome!

Why dont we use them all the time? arn't they reeeeeeeealy efficent?